You are viewing a plain text version of this content. The canonical link for it is here.
Posted to common-commits@hadoop.apache.org by as...@apache.org on 2017/07/12 04:53:34 UTC
[18/50] [abbrv] hadoop git commit: HADOOP-14615. Add
ServiceOperations.stopQuietly that accept slf4j logger API. Contributed by
Wenxin He.
HADOOP-14615. Add ServiceOperations.stopQuietly that accept slf4j logger API.
Contributed by Wenxin He.
Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/1aaa7f1e
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/1aaa7f1e
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/1aaa7f1e
Branch: refs/heads/YARN-5972
Commit: 1aaa7f1eacab20d1c27f410333a536033cad1aab
Parents: 186650d
Author: Steve Loughran <st...@apache.org>
Authored: Tue Jul 4 10:48:02 2017 +0100
Committer: Steve Loughran <st...@apache.org>
Committed: Tue Jul 4 10:48:02 2017 +0100
----------------------------------------------------------------------
.../hadoop/service/ServiceOperations.java | 20 ++++++
.../hadoop/service/TestServiceOperations.java | 65 ++++++++++++++++++++
2 files changed, 85 insertions(+)
----------------------------------------------------------------------
http://git-wip-us.apache.org/repos/asf/hadoop/blob/1aaa7f1e/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/service/ServiceOperations.java
----------------------------------------------------------------------
diff --git a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/service/ServiceOperations.java b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/service/ServiceOperations.java
index 6c03e25..a0a77ce 100644
--- a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/service/ServiceOperations.java
+++ b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/service/ServiceOperations.java
@@ -25,6 +25,7 @@ import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.classification.InterfaceAudience.Public;
import org.apache.hadoop.classification.InterfaceStability.Evolving;
+import org.slf4j.Logger;
/**
* This class contains a set of methods to work with services, especially
@@ -87,6 +88,25 @@ public final class ServiceOperations {
return null;
}
+ /**
+ * Stop a service; if it is null do nothing. Exceptions are caught and
+ * logged at warn level. (but not Throwables). This operation is intended to
+ * be used in cleanup operations
+ *
+ * @param log the log to warn at
+ * @param service a service; may be null
+ * @return any exception that was caught; null if none was.
+ * @see ServiceOperations#stopQuietly(Service)
+ */
+ public static Exception stopQuietly(Logger log, Service service) {
+ try {
+ stop(service);
+ } catch (Exception e) {
+ log.warn("When stopping the service {} : {}", service.getName(), e, e);
+ return e;
+ }
+ return null;
+ }
/**
* Class to manage a list of {@link ServiceStateChangeListener} instances,
http://git-wip-us.apache.org/repos/asf/hadoop/blob/1aaa7f1e/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/service/TestServiceOperations.java
----------------------------------------------------------------------
diff --git a/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/service/TestServiceOperations.java b/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/service/TestServiceOperations.java
new file mode 100644
index 0000000..5df973d
--- /dev/null
+++ b/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/service/TestServiceOperations.java
@@ -0,0 +1,65 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.service;
+
+import org.apache.hadoop.test.GenericTestUtils.LogCapturer;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.runners.MockitoJUnitRunner;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.PrintWriter;
+
+import static org.apache.hadoop.test.GenericTestUtils.LogCapturer.captureLogs;
+import static org.hamcrest.CoreMatchers.containsString;
+import static org.junit.Assert.assertThat;
+import static org.mockito.Mockito.doThrow;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+
+/**
+ * Test miscellaneous service operations through mocked failures.
+ */
+@RunWith(MockitoJUnitRunner.class)
+public class TestServiceOperations {
+
+ @Mock
+ private Service service;
+
+ @Mock
+ private RuntimeException e;
+
+ @Test
+ public void testStopQuietlyWhenServiceStopThrowsException() throws Exception {
+ Logger logger = LoggerFactory.getLogger(TestServiceOperations.class);
+ LogCapturer logCapturer = captureLogs(logger);
+ doThrow(e).when(service).stop();
+
+ ServiceOperations.stopQuietly(logger, service);
+
+ assertThat(logCapturer.getOutput(),
+ containsString("When stopping the service " + service.getName()
+ + " : " + e));
+ verify(e, times(1)).printStackTrace(Mockito.any(PrintWriter.class));
+ }
+
+}
\ No newline at end of file
---------------------------------------------------------------------
To unsubscribe, e-mail: common-commits-unsubscribe@hadoop.apache.org
For additional commands, e-mail: common-commits-help@hadoop.apache.org